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qmk_firmware/keyboards/meira
History
Cole Markham bd1ad405bf Update Meira for revision 1.1 to enable backlighting by default (#2468) 
* Update Meira for revision 1.1 to enable backlighting by default

* Updates to fix other keymaps
 		7 years ago
..
featherble Update Meira for revision 1.1 to enable backlighting by default (#2468) 7 years ago
keymaps Update Meira for revision 1.1 to enable backlighting by default (#2468) 7 years ago
promicro Update Meira for revision 1.1 to enable backlighting by default (#2468) 7 years ago
TWIlib.c Add support for Meira 7 years ago
TWIlib.h Add support for Meira 7 years ago
config.h Update Meira for revision 1.1 to enable backlighting by default (#2468) 7 years ago
issi.c Add support for Meira 7 years ago
issi.h Add support for Meira 7 years ago
lighting.c Update Meira for revision 1.1 to enable backlighting by default (#2468) 7 years ago
lighting.h Add support for Meira 7 years ago
matrix.c Remove _quantum functions from custom matrix.c code 7 years ago
meira.c Fix keyboard not working if I2C pullups not enabled. 7 years ago
meira.h Update Meira for revision 1.1 to enable backlighting by default (#2468) 7 years ago
readme.md Update Meira readme 7 years ago
rules.mk Update Meira for revision 1.1 to enable backlighting by default (#2468) 7 years ago

readme.md

Meira

Miera

A 4x12 ortholinear low-profile keyboard.

Keyboard Maintainer: Cole Markham
Hardware Supported: Meira/ProMicro, Meira/FeatherBLE
Hardware Availability: WoodKeys.click

Two controllers are support: the Pro Micro, and the Adafruit Feather BLE 32u4. Support for each is defined as a hardware revision subfolder in QMK. Main differences include processor frequencies and matrix pinouts.

Make example for this keyboard (after setting up your build environment):

make meira/promicro:default

or

make meira/featherble:default

See build environment setup then the make instructions for more information on generic QMK configuration and setup.

Both the Pro Micro and the Feather BLE use the Catalina bootloader, which is typically programmed using avrdude.

Matrix

In order to have enough pins for the matrix and other functions, a custom matrix is implemented using a demultiplexer to scan the columns. Since the demux is active low, the diodes must be oriented with the cathode connected to the demux pin. When looking at the bottom of the board with the controller at the top right, the cathode mark on the diode should be toward the left.

LED Controller

The in-switch LEDs are driven by an ISSI LED controller (IS31FL3731). The micro controller communicates with this chip using I2C. Individual LED control is possible, but currently only general backlighting support is implemented. This functionality is located in lighting.c, issi.c, and TWILib.c.